Spring-wheel.



No. 891,682. PAITENT'ED JUNE as; 1908.

G. FERRANDO.

SPRING WHEEL.

APPLICATION FILED FEB. 8. 1806.

PATENT OFFICE.

erusnrrn FERRANDO, or GENOA, ITALY.

SPRING-WHEEL.

Specification of Letters Patent.

Application filed February 8, 1906.

Patented June 23, 1908.

Serial No. 300,196.

T 0 all whom it may concern:

Be it known that I, GIUsEPPn FERRANDO, a subject of the King of Italy,residing at Genoa, Italy, via Montallegro, Villa Vopallo, have inventedcertain new and useful Improvements in Spring-WVheels; and I do hereydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in that type of vehicle wheelswherein metallic springs are employed to attain the resiliency usuallyobtained by the use of pneumatic tires.

The object of the invention is to provide a wheel of this charactercomprising few and simple parts which mutually cooperate with each otherin a peculiar manner to obtain a strong and durable construction.

With these and other objects in view, the

, invention comprises certain other novel constructions, combinationsand arrangements of parts, as will be hereinafter fully described andclaimed.

In the drawings :Figure 1 is a front elevation of a wheel constructed inaccordance with the invention, portions being broken away. Fig. 2 is aside elevation of the same, portions being broken away.

Broadly speaking the invention comprises a wheel formed with twoconcentric rims which are loosely connected by means of a series ofradial springs. The numeral 1 designates a wheel which may be of anyconventional construction and which is provided with a rim 2. A metallicband 13 surrounds the rim 2 and is formed along opposite edges withinwardly extending flanges 3 which embrace the rim 2 and hold the band13 against lateral movement. These inwardly extending flanges 3 areprovided at intervals with ears 4 which project inwardly beyond the rim2 and are connected by bolts or similar fastening means 5. A pair ofoutwardly extending flanges 6 is alsov formed in connection with theband 13 and these flanges 6 are in alinement with the above-mentionedinwardly extending flanges 3. The outer rim 7 of the wheel is spacedfrom the rim 2 and preferably has a channel formation as indicated inthe drawings, the side flanges of the channel portion being connected toguard members 8 which extend inwardly on opposite sides of the wheel andserve to exclude dust and other foreign matter from the springs 9, whichconnect the outer and inner rims of the wheel. These springs 9 areformed by coiling a strip of flat spring material and have their basesor larger ends pivotally connected between the outwardly extendingflanges 6 upon the band 13 by means of transversely disposed pins 10connecting the said flanges. Projecting inwardly from the outer rim 7 isa series of lugs 11 to which the outer ends of the springs 9 arepivotally connected by means of the pins 12. With this construction itwill be apparent that the springs have a pivotal connection with boththe outer and inner rims, which, in conjunction with their resilientnature enables the inner rim to be moved with respect to the outer rim.

What I claim is 1. In a spring wheel, the combination of an inner rim, aband surrounding the inner rim, and provided along opposite edges withinwardly extending flanges which embrace theinner rim, and also withoutwardly extending flan es, a series of bolts connecting the oppositely disposed, outwardly extending flanges, an outer rim s aced from theinner rim, and a series of coi springs having their outer ends pivotallyconnected to the outer rim while their inner ends are pivotallyconnected to the above-mentioned bolts .joining the outwardly extendingflanges upon the above-mentioned band.

2. In a springwheel, the combination of an inner rim, a band surroundingthe inner rim, and provided along opposite edges with inwardly extendingflanges which embrace the inner rim and are provided at intervals withears which project inwardly beyond the inner rim and are connected byfastenin' means, the said band being also providec with a pair ofoppositely disposed, outwardly projecting flanges, pins connecting theoutwardly extending flanges, an outer rim spaced from the inner rim, anda series of coil springs having their outer ends pivotally connected tothe outer rim while their inner rims are pivotally connected to the pinsconnecting the above-mentioned outwardly extendingflanges upon the band.

3. In a spring wheel, the combination of an inner rim, a band encirclingthe inner rim and provided along its opposite edges with inwardlyextending flanges which embrace the inner rim, and also with a pair ofoppositely disposed, outwardly projecting flanges,

a series of pins connecting the outwardly prooutwardly extending flangesupon the abovejecting flanges, an outer rim spaced. from the mentionedband. 10 inner rim and provided at intervals With in- Signed by me atGenoa, in the Kingdom of Wardly projecting lugs, and a series of coilItaly this 17th day of January 1906.

springs having their outer ends pivotally GIUSEPPE FERRANDO. connectedto the lugs upon the outer rim, Witnesses:

While the inner ends are pivotally connected ARTURO Moscow,

to the above-mentioned pins connecting the OAMPANELLA LUIGI.

